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Emerald|Lab Grown|IGI

1.01ct J SI1 Emerald Lab Grown Diamond

ID • J/SI1 • IGI LG407997020

Shape and cutting style on the report: Emerald cut

Certificate IGI LG407997020

Diamond specifications and retailer prices

From £678 GBP
As of November 6, 2026
Save £1,981 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,659 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.01ct lab-grown emerald diamond

This 1.01ct lab-grown emerald sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407997020 or 407997020. Listed at 9 retailers as of November 5, 2026, with prices from £678 to £2,659, a £1,981 spread on the same certified stone. MOH London lists it at £2,659. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407997020
Dimensions6.79 × 4.81 × 3.20 mm
L/W Ratio1.41
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
6.79 mm4.81 mm1.01 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407997020
Side View
Table 62.0%Crown 23°Girdle: MED-STKPavilion 39.5°Culet: LNGDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,659 GBP|Low: £651 GBP|High: £2,702 GBP|Avg: £1,329 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4£678 GBP
Retailer 5£786 GBP
Retailer 7£786 GBP
Retailer 2£918 GBP
Retailer 8£1,149 GBP
Retailer 6£1,261 GBP
Retailer 3£1,749 GBP
MOH London£2,659 GBP

19 data points across 8 retailers

9 retailers£678 GBP to £2,659 GBP

B+
Cheapest Retailer
-
£678 GBP
B+
Retailer 2
-
£737 GBP
View
B+
Retailer 3
-
£786 GBP
View
Retailer 4
-
£786 GBP
View
Price last confirmed 25 days ago
B
Retailer 5
-
£918 GBP
View
B
Retailer 6
-
£1,261 GBP
View
B
Retailer 7
-
£1,749 GBP
View
B
Retailer 8
-
£2,210 GBP
View
Most Expensive
B
MOH London
LG407997020 · Nov 5
£2,659 GBP
View
8 more retailers have this diamond
Prices start from £678 GBPSave up to £1,981 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.01ct Emerald
£678 GBP